Man Made Byproduct (Non Geological)

Green Fluorite

Calcium Fluoride (CaF2)

Pyrite

Iron Disulfide (FeS2)

Orange Calcite

Calcium Carbonate (CaCO3)

Fluorite

Calcium Fluoride (CaF2)

Limestone

Calcium Carbonate (CaCO3)

Botryoidal Aragonite (Cave Popcorn)

Aragonite (Calcium Carbonate, CaCO3)

Fluorite (likely Green Fluorite variant)

Calcium Fluoride (CaF2)

Green Fluorite

Calcium Fluoride (CaF2)

Quartz (likely Yellow/Orange variety, possibly Citrine or Chalcedony with iron staining)

Quartz (SiO₂)

Spinifex Textured Komatiite

Ultramafic Komatiite (with Olivine Spinifex)

igneous

Petrified Wood

Silicified Wood (primarily Quartz / Chalcedony: SiO2)

Sedimentary (with some aspects of mineral replacement)

Fossilized Wood (Petrified Wood)

Silicified Wood (primarily quartz/chalcedony replacing organic matter)

Zebra Marble

Metamorphosed Alabaster/Limestone (CaCO3)

Smoky Quartz

Smoky Quartz (SiO2)

Limestone

Calcium Carbonate (CaCO3)

Rose Quartz (tumbled)

Rose Quartz (variety of Quartz, chemical formula SiO₂)

Quartz (milky variety)

SiO2 (Silicon Dioxide)

Citrine Quartz

Citrine (Silicon Dioxide - SiO2)

Granite

Granite (Phaneritic intrusive igneous rock; primarily SiO2 and Al2O3)

igneous

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Rhodonite

Rhodonite; (Mn,Fe,Mg,Ca)SiO3

Sedimentary Rock (as a residual soil/rock, it's often considered a type of sedimentary rock due to its formation from weathering, though it can cross into soil science)

Laterite

Laterite (primarily composed of hydrated oxides of iron and aluminum)

Granite

Granite (Mainly Quartz SiO2, K-Feldspar KAlSi3O8, and Plagioclase)

igneous

Limestone

Calcium Carbonate (CaCO3)

Orange Satin Spar (Satin Spar Selenite)

Satin Spar - Hydrous Calcium Sulfate (CaSO4·2H2O)

Quartz (likely a clear or rock crystal variety)

Quartz (SiO2 - Silicon Dioxide)

Sedimentary (Biogenic sediment or biological remain)

Bivalve Shell (Fossil or Contemporary)

Class Bivalvie (various genera and species of clams, cockles, etc.)

Gneiss (specifically Granitic Gneiss)

Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Bauxite Ore

Hydrated aluminum oxides (e.g., Gibbsite Al(OH)3, Boehmite ̲̲̲̲AlOOH, Diaspore ̲̲̲̲AlOOH)

Red Jasper or Chert

Jasper (SiO2, a variety of chalcedony with iron oxide impurities), Chert (SiO2)

Chakra Stone Bracelet (mixed gemstones)

Multi-mineral/Gemstone assembly (primarily Quartz variety beads)

Fluorite-Gedrite in Quartz (Schist)

Fluorite (CaF2) with Gedrite in Quartz/Feldspar Matrix

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Rose Quartz

Rose Quartz (SiO₂)

Crystal Quartz Beads (likely Clear Quartz)

Quartz (SiO₂)

Rhodonite

Manganese Inosilicate (MnSiO3), often with Ca, Fe, Mg, Zn

Biotite Schist

Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)

Turquoise

Turquoise (Hydrated phosphate of copper and aluminium) - CuAl6(PO4)4(OH)8·4H2O

Garnet (likely Pyrope or Almandine)

Garnet Group (complex nesosilicate minerals, e.g., Pyrope Mg3Al2(SiO4)3, Almandine Fe3Al2(SiO4)3, Spessartine Mn3Al2(SiO4)3, Grossular Ca3Al2(SiO4)3, Andradite Ca3Fe2(SiO4)3, Uvarovite Ca3Cr2(SiO4)3). The vivid red color in the image strongly suggests Pyrope or Almandine.

Citrine

Quartz (SiO2) - specifically, a variety of macrocrystalline quartz